package com.ruoyi.framework.web.service;

import javax.annotation.Resource;

import com.mashuai.utils.base.MsAssertUtils;
import com.mashuai.utils.base.MsEmptyUtils;
import com.mashuai.utils.toolkit.core.msConverts.MsConvertDataUtils;
import com.mashuai.utils.toolkit.core.msConverts.MsTimeUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.framework.web.dto.SysGetTokenDto;
import com.ruoyi.system.mapper.SysUserMapper;
import com.ruoyi.system.service.impl.SysUserServiceImpl;
import org.apache.commons.collections4.MapUtils;
import org.checkerframework.checker.units.qual.A;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.BlackListException;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.exception.user.UserNotExistsException;
import com.ruoyi.common.exception.user.UserPasswordNotMatchException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.ip.IpUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.framework.security.context.AuthenticationContextHolder;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;

import java.util.Date;
import java.util.Map;

/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Component
public class SysLoginService {
    @Autowired
    private TokenService tokenService;

    @Resource
    private AuthenticationManager authenticationManager;

    @Autowired
    private RedisCache redisCache;

    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysConfigService configService;

    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private SysUserServiceImpl sysUserServiceImpl;

    /**
     * 登录验证
     *
     * @param username 用户名
     * @param password 密码
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid) {
        // 验证码校验
        validateCaptcha(username, code, uuid);
        // 登录前置校验
        loginPreCheck(username, password);
        return createToken(username, password);
    }

    /**
     * 根据账号密码生成token
     *
     * @param username
     * @param password
     * @return
     */
    private String createToken(String username, String password) {
        // 用户验证
        Authentication authentication = null;
        try {
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(username, password);
            AuthenticationContextHolder.setContext(authenticationToken);
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager.authenticate(authenticationToken);
        } catch (Exception e) {
            if (e instanceof BadCredentialsException) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
                throw new UserPasswordNotMatchException();
            } else {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, e.getMessage()));
                throw new ServiceException(e.getMessage());
            }
        } finally {
            AuthenticationContextHolder.clearContext();
        }
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }

    /**
     * 微信小程序获取登录token信息
     *
     * @param params {wxOpenId:"唯一标识，作为账号使用","nickName":用户昵称,avatar:"头像地址"}
     * @return
     */
    public SysGetTokenDto getWxToken(Map<String, Object> params) {
        SysGetTokenDto dto = new SysGetTokenDto();

        String wxOpenId = MapUtils.getString(params, "wxOpenId");
        String defPassWord = MapUtils.getString(params, "defPassWord");
        //判断用户是否已经存在,根据用户openId判断
        SysUser sysUser = sysUserMapper.checkUserNameUnique(wxOpenId);
        //用户不存在新增
        if (sysUser == null) {
            //用户openId，等于登录的账号
            String nickName = MapUtils.getString(params, "nickName");
            sysUser = new SysUser();
            //设置默认角色
            Long defRoleId = 101L;
            Long[] defRoleIds = {defRoleId};
            sysUser.setRoleId(defRoleId);
            sysUser.setRoleIds(defRoleIds);
            //设置默认岗位
            Long defPostId = 6L;
            Long[] defPostIds = {defPostId};
            sysUser.setPostIds(defPostIds);
            //默认部门
            Long defDeptId = 200L;
            sysUser.setDeptId(defDeptId);
            //基本信息
            //账号
            sysUser.setWxOpenId(wxOpenId);
            sysUser.setUserName(wxOpenId);
            if (MsEmptyUtils.isNotEmpty(nickName)){
                sysUser.setNickName(nickName);
            }
            sysUser.setAvatar(MapUtils.getString(params,"avatar"));
            sysUser.setSex(MapUtils.getString(params,"sex"));
            //城市、生日
            sysUser.setCity(MapUtils.getString(params, "city"));
            sysUser.setBirthday(MapUtils.getString(params, "birthday"));
            //默认加密，pcj123456
            sysUser.setPassword(SecurityUtils.encryptPassword(defPassWord));
            sysUser.setCreateTime(new Date());
            sysUser.setRemark("小程序");
            sysUser.setDelFlag("0");
            //备注
            sysUser.setRemark("小程序注册");
            sysUserServiceImpl.insertUser(sysUser);
            dto.setSysUser(sysUser);
        }
        dto.setSysUser(sysUser);
        //这个地方直接全部使用默认密码登录，如果后面有需求可以修改登录密码，sys_user加一个字段存原密码
        String token = createToken(sysUser.getUserName(), defPassWord);
        dto.setToken(token);
        return dto;
    }

    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid) {
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled) {
            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
            String captcha = redisCache.getCacheObject(verifyKey);
            redisCache.deleteObject(verifyKey);
            if (captcha == null) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
                throw new CaptchaExpireException();
            }
            if (!code.equalsIgnoreCase(captcha)) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
                throw new CaptchaException();
            }
        }
    }

    /**
     * 登录前置校验
     *
     * @param username 用户名
     * @param password 用户密码
     */
    public void loginPreCheck(String username, String password) {
        // 用户名或密码为空 错误
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // IP黑名单校验
        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
            throw new BlackListException();
        }
    }

    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public void recordLoginInfo(Long userId) {
        SysUser sysUser = new SysUser();
        sysUser.setUserId(userId);
        sysUser.setLoginIp(IpUtils.getIpAddr());
        sysUser.setLoginDate(DateUtils.getNowDate());
        userService.updateUserProfile(sysUser);
    }


}
